As Taste and Whippit are leaving their apartment, Taste says "Don't let yourself get attached to anything you are not willing to walk out on in 30 seconds flat". This is a reference to a quote from the movie Heat (1995). William Fichtner, who plays District Attorney Frank Crenshaw, was in Heat.
In-joke: the surnames of the two tough-looking guys that appear at the restaurant are similar with those of two of the three astronauts in the crew of Apollo 11 (Neil Armstrong, first man on the moon; Michael Collins, Command Module Pilot)
Eight years before this movie, in 2002, Ray Liotta and William Fichtner both worked together in the video game Grand Theft Auto: Vice City. Liotta did the voice of the game's protagonist, Tommy Vercetti, while Fichtner provided the voice of his lawyer Ken Rosenberg. Fichtner's character, Frank Crenshaw, may possibly be based on Rosenberg; as they are both lawyers. While Liotta's character, Joe Miletto, might possibly be based on Vercetti; as they are both crime bosses.
In-jokes and obscure references: When Phil (Steve Carell) and Claire (Tina Fey) return to the restaurant claiming to be friends of Will.i.am they mistakenly call him Sam i Am. This is a reference to LA hip-hop producer Samiyam, who Collins (Common) is known to be a fan of.
When Taste tells Phil not to go all 'Raymond Burr' on him, Taste is confusing the actor, Raymond Burr, with the US politician, Aaron Burr. Raymond Burr was a US actor, familiar for his television performances in Perry Mason (1957) and Ironside (1967). Aaron Burr was the third Vice_president of the USA, most famous for killing Alexander Hamilton in a duel in 1804. This reference would be lost on people unfamiliar with US political history, and especially on non-US audiences.
The names of the couple played by Steve Carell and Tina Fey are Phil and Claire. This is the same name as the couple from the sitcom Modern Family. In the show, the characters are played by Ty Burrel and Julie Bowen.